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<td class="header">&nbsp; TOPSAR Merge<br>
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<h3>Sentinel-1 TOPSAR Merge</h3>
<p class="MsoNormal"><span>For the
TOPSAR IW
and EW SLC products, each product consists of one image per swath per
polarization. IW products have 3 swaths and EW have 5 swaths. Each
sub-swath
image consists of a series of bursts, where each burst was processed as
a
separate SLC image. The individually focused complex burst images are
included,
in azimuth-time order, into a single sub-swath image, with black-fill
demarcation in between, similar to the ENVISAT ASAR Wide ScanSAR SLC
products.</span></p>
<p class="MsoNormal">With the current toolbox, most operators in the
TOPS InSAR processing chain operate on split product. For example with
"TOPSAR Coreg Interferogram" graph, debursted interferogram for a given
sub-swath is obtained. The TOPSAR Merge operator merges the debursted
split product of different sub-swaths into on complete product. The
merge happens only in range in the same fashion as in TOPSAR Deburst
operator.<br>
<span style=""></span></p>
 
<h4>Input <br>
</h4>



<ul>
<li>The input to this operator should be a set of split Sentinel-1 SLC
products with the same acquisition mode, same polarisations and
consecutive subswath indices.<br>
  </li>
</ul>

<h4>Output <br>
</h4>




<ul>
<li>The output of the operator are the co-registered master and slave bands in I/Q format. <br>

  </li>
</ul>


<h4>Parameters Used<br>
</h4>




<ul>
<li>Polarisations: The polarisations for the merged product.<br>

  </li>
</ul>


<p><img style="width: 650px; height: 499px;" alt="" src="images/Merge.jpg"><br>

</p>

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